Materials & Core-Spec Scrutiny

Deep dives into core materials, grit durability, and surface wear. New profilometer measurements and spin loss ranges (40–150 hours). Upcoming October 2026 RPM test from PaddleVision. Now includes official USAP spin rate test with 2,100 RPM cap using dual-camera PaddleVision system, enforcement Oct 1, 2026, commercial test ball from Franklin. Honolulu J2CR Crystal Blue endurance surface and TENVINA Hercules T700SC review add to surface durability tracking. Podcast episode adds new foam details for 11SIX24 Jelly Bean 2. Two new articles today: 'Pickleball's Composite Problem' reports 50% roughness drop after 30 sessions on raw carbon; 'Surface Friction Engineering' analyzes carbon grit texture and ball bite mechanics. Added: Quanta R4.16 specs (EPP+EVA+TPE core, no honeycomb, USAP PBCoR .43) for materials tracking. Now also: Honolulu J3CR Crystal Blue review adds endurance surface data for widebody shape; Franklin C45 'The Fives' limited edition (14mm, T700 carbon, SW 114, TW 6.2) adds to materials tracking.